Self locking slip under button



July 4, 1933. c LIGHT 1,916,733

SELF LOCKING SLIP UNDER BUTTON Filed July 29, 1952 Fql Z ATTORNEY Patented July 4, 1933 UNITED STATESPA'IJ'EVNT OFFICE ICHABIESA, LIGHT, or BROOKLYN, NEWPYORK I SELF. LOCKING sL'IP UNDER nu'r'ron App1ication filed Jul 29 This invention relates to buttons and has particular reference to buttons of the slip under type. I I

One object of this invention is to. provide a device of the character described for locking the strand or cord which is used to secure the button in place. y. I

' The invention finds especial. application'in connection with mattress tufts, the binding strands or cords in .whichbecome loose as the mattress thins down underrepeated use,.so

that the ordinary slip under'button becomes 'loose'and is frequently detached and lost.

Another object of the invention is to furnish a button for use with mattress'tufts and the like, which button has improved means whereby it gradually forms a seating depression in a mattress so as to 'lie substantizilly uniformly with respect tothe surface of the mattress. p

Another object of the invention is the provision of a device of the nature set forth which is simple and inexpensive in construction. convenient, durable and ellicient in use- Other objects and advantages of the invention willbecome apparent as the specification proceeds.

With the aforesaid and other objects in view, the invention consists in the nove-l'combinations and arrangements of parts hereinafter described intheir preferred embodiments, pointed out in thesubjoined, claim, and illustrated on the annexed drawing, wherein like parts are designated by the-same reference characters throughout the'several' tures andinstrumentalities are combined in 1932.. semi No. ith. v

one-and the, same structure, but, useful devices may-be produced embodying less than the whole.

It will be obvious to those skilled inthe art towhich this invention appertains, that the same-may be'incorporated in several different constructions The accompanying drawing, therefore, is submitted merely as showing the preferred exemplification of the invention. v I

Heretofore it has been proposed to provideslip under buttons with a plurality of slots through which a securing strand could be passed for .anchoring'the button. These slots have detracted from comfort in using.

the button, and have permitted, loss of the buttonif the strand loosened. By my invention, I provide a buttonof resilient or elastic material having apertures for the I securing strand and slits leading to said aperatures,.which slits are closed by the elastic-" ity ofthe button to prevent accidental removal of the strand from said apertures. If desired, the button may have peripheral e11- teringopenings or notches for the slits. This button may be used for-various purposes, as in connection with garments and different devices, but is especially applicableto mat-' tresses; For the latter purpose, the'buttonw may have a reenforcing projection at the apertures and maybe downwardly convexed so as 'to bear into the mattress and. afford a permanent seat for the button which may thuslieuniformly with the mattress surface. The button may also be arranged with but one slit extending to the periphery thereof,

and bythis invention an improved novel tuft structure is provided; I

Referring indetail to the drawing, 10 denotes a device embodying the invention. same may, beinthe nature of an anchorage or button consisting: of an elastic material such as rubber or other composition material. Said button may be of any suitablesize and shape, and can be round as shown. the central region of said button, a plurality of apertures 1'1maybe provided, and slits 12 may individually connect these apertures withthe periphery 13' of the'button.

The

Near

sired, said slits mayextend along a diameter surface 16, thebutton may have a central projection 17 the apertures being indirect proximity thereto, so that said projection recnforces this part of the button against the pull by a strand. i v

In making a tuft, the mattress 18 having a cord 21 passed therethrough so as to form aloop. .The buttons 10 may be applied to oppositefaces of the mattress, the cord being entered into the apertures 11 by slipping the same through the'slits 12, after which the cord may be tied as'at 22 at the underside of the mattress. Thusthe threading of the cord through the apertures is avoided and time-and labor saved.

It will be noted that the lower convex portions of the buttons gradually work into the mattress to afford concave seats 23 therefor,

whereby the buttons arereliably located even if the cord 21 should loosen'somewhat.

Moreover, the upper surfaces of the buttons lie substantially along the surface of the mattress. i I

In course ofrcpeated use, the mattress'thms' down so that the cord is of relatively excess length and hence theocondition shown in Fig. l occurs, with a slack'2l1n thecord. However. the button will remain. in engagement with thecord because the slits are closed by the resilience of the button material. In fact, any pull on the button will tend to cause the slits to close even more tightly. Similar ad-f vantages as above described will be obtained by usingthe buttons for garments,and' gen-. erally wherever a'button' may be required.

For some uses, as inconnection with gar-- ments it is preferable to have as few slits as possible in the button, and hence I have devised an elastic button 25 as shown in Fig. 5, which may be similar to that hereinbefore described except that apertures 11 are intercommunicated with the button periphery by single slit 26. The latter may communicate with a curved sl1t'27extend1ng between the apertures and around the lower projection. The opening 1 M maybe formed only in the lower face ofthe button adjacent to the periphery so that the periphery is unbroken at the top surface of the button. If the button be sufliciently thin, the slit 26 may be omitted and an edge portion of the button may be flexed from the plane thereof so that the central portion of the button between the apertures 11 will constitute a tongue having its edge formed by the slit 27, and whereby a strand may be passed around said tongue to be recelved 1n thefapertures;

through slits 29 into apertures 11. As shown,

said slits may connect with the apertures 11 near the1r outermost portions as at 31 and at 32. This button is self locking and can be 7 otherwise similar to the button 10. any filling 19 and a fabric casing 20 has p p sisting of a. homogenous, permanently flexi- Buttons of the type above described eonbe colored to suit the article to which it is applied. However, the buttons can also be made of a pliable material such as leather or. fabric, which can be stiffened or rubberized if desired, and even thin resilientv sheet metal may beused. It may also .be noted that the slits serve t e-increase the pliability of the button so that it can more easily be passed through button holes, especially if these be somewhat smaller than the buttons, andyet the central portions of the buttons are sulficiently heavy to resist all ordinary stresses. In certain instances, slots may be used asat It will beappreciated that various changes and modifications may be made in the device as shown in the drawing, and that the same is submitted in an illustrative'and not in a limiting sense, the scope of the invention being defined in the following claim.

A slip-under button formattress tufts, said" button consisting of rubber and having a relatively thinedge and a s'ubs'tantial'circular convexity on one 'sidethereof to form a depressed seat for the button in a mattress, said button having an integral reinforcing conwith opening--30 near itsinnermost portion as tral projection on said one side thereof for in the a aertures b the self-closin action of y I a the said slits. p v y In testimony whereofI afiiX my signature.

- CHARLES A. LIGHT. 

